Make UIA in MS Word optional again, through an Advanced Settings category (#9200)
* _UIAHandler: don't use UIA in MS Word by default as it is still not ready. Rather, still allow it to be used byased on the useInMSwordWhenAvailable config option.
* Add an Advanced settings category to NVDA's Settings dialog. This contains all config options that were previously not accessible from the GUI. this includes:
Use UIA in MS Word, caret movement timeout, and the debug log categories.
* Address review comments. Debug log categories are now a checkListBox, and fixed typo in userGuide.
* Fix typos in userGuide.
* Update what's new.